MHT CET202124 Sep 2021Morning ShiftPhysicsElectrostaticsActual
Two positive ions, each carrying a charge ' q ' are separated by a distance ' d '. If ' F ' is the force of repulsion between the ions, the number of electrons from each ion will be ( e = charge on electron, ₀= permittivity of free space)
Options
- A4 ₀ ~d ^2 e ^2
- B4 ₀ Fd e ^2
- C4 ₀ Fd e
- D4 ₀ Fd ^2 e ^2
Correct answer
D. 4 ₀ Fd ^2 e ^2
Step-by-step solution
aligned & F = 1 4 ₀ q ^2 ~d ^2 = 1 4 ₀ ( ne )^2 ~d ^2 = 1 4 ₀ n ^2 e ^2 ~d ^2 & n = 4 ₀ Fd ^2 e ^2 aligned